chore: modernize to latest rainix (flake + CI)

- flake: point at github:rainlanguage/rainix; bump lock; drop the removed
  rainix-rs-prelude/test/artifacts devShell refs (flake no longer evaluated
  against latest rainix); base the shell on rainix.devShells.rust-node-shell
  (rust + node + wasm-bindgen) while keeping the dotrain binary + js-binding tasks
- CI: replace bespoke rainix.yaml (dead magic-nix-cache, removed tasks) with
  reusable rainix-rs-static + rainix-rs-test + a js-bindings job; drop wasm-test
  (the cli isn't wasm-targeted; js bindings are built via npm/wasm-pack)
- manual-release: swap dead magic-nix-cache for cache-nix-action, drop the
  removed rainix-rs-prelude, rainix-rs-test -> cargo test
- apply latest rainix formatter hooks (taplo/denofmt/rustfmt config)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: thedavidmeister

.github/workflows/manual-release.yaml

@@ -7,14 +7,13 @@ on:
         required: true
         type: choice
         options:
-          - alpha   # Increase the alpha pre-version (x.y.z-alpha.M)
-          - beta    # Increase the beta pre-version (x.y.z-beta.M)
-          - patch   # Increase the patch version (x.y.z)
-          - minor   # Increase the minor version (x.y.0)
-          - major   # Increase the major version (x.0.0)
+          - alpha # Increase the alpha pre-version (x.y.z-alpha.M)
+          - beta # Increase the beta pre-version (x.y.z-beta.M)
+          - patch # Increase the patch version (x.y.z)
+          - minor # Increase the minor version (x.y.0)
+          - major # Increase the major version (x.0.0)
           - release # Remove the pre-version, ie remove alpha/beta/rc (x.y.z)
-          - rc      # Increase the rc pre-version (x.y.z-rc.M)
-
+          - rc # Increase the rc pre-version (x.y.z-rc.M)
 jobs:
   release:
     runs-on: ubuntu-latest
@@ -26,71 +25,62 @@ jobs:
           fetch-depth: 0
           submodules: recursive
           ssh-key: ${{ secrets.PUBLISHER_SSH_KEY }}
-
-      - uses: DeterminateSystems/nix-installer-action@v4
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
-
+      - uses: nixbuild/nix-quick-install-action@v30
+        with:
+          nix_conf: |
+            keep-env-derivations = true
+            keep-outputs = true
+      - name: Restore and save Nix store
+        uses: nix-community/cache-nix-action@v6
+        with:
+          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
+          restore-prefixes-first-match: nix-${{ runner.os }}-
+          gc-max-store-size-linux: 1G
       - name: Install NodeJS v22
         uses: actions/setup-node@v4
         with:
           node-version: 22
           cache: 'npm'
-
-      - run: nix develop -c rainix-rs-prelude
-      
       - name: Run rainix-rs-test
-        run: nix develop -c rainix-rs-test
-
+        run: nix develop -c cargo test
       - name: Build JS Bindings
-        run:  nix develop -c build-js-bindings
-      
+        run: nix develop -c build-js-bindings
       - name: Run JS Tests
-        run:  nix develop -c test-js-bindings
-
+        run: nix develop -c test-js-bindings
       - name: Git Config
         run: |
           git config --global user.email "${{ secrets.CI_GIT_EMAIL }}"
           git config --global user.name "${{ secrets.CI_GIT_USER }}"
-
       - name: Publish to crates.io
         run: nix develop -c cargo release --no-confirm --execute --no-tag --workspace ${{ inputs.version-level }}
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
-
       # set npm version to rust crate version
       - name: Set Version
         run: echo "NEW_VERSION=$(nix develop -c npm version $(node ./scripts/version.js) --no-git-tag-version)" >> $GITHUB_ENV
-
       # Commit changes and tag
       - name: Commit And Tag
         run: |
           git add "package.json"
           git add "package-lock.json"
           git commit -m "Release ${{ env.NEW_VERSION }}"
           git tag ${{ env.NEW_VERSION }}
-
       # Push the commit to remote
       - name: Push Changes To Remote
-        run: | 
-          git push origin 
-          git push -u origin ${{ env.NEW_VERSION }}
+        run: "git push origin \ngit push -u origin ${{ env.NEW_VERSION }}\n"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
       # Create npm package tarball to put in release files
       - name: Create NPM Package Tarball
         run: echo "NPM_PACKAGE=$(nix develop -c npm pack --silent)" >> $GITHUB_ENV
-
       - name: Rename NPM Package Tarball
         run: mv ${{ env.NPM_PACKAGE }} dotrain_npm_package_${{ env.NEW_VERSION }}.tgz
-
       # publish to npm
       - name: Publish To NPM
         uses: JS-DevTools/npm-publish@v1
         with:
           token: ${{ secrets.NPM_TOKEN }}
           access: public
-
       # Create gitHub release with npm tarball
       - name: Create GitHub Release
         id: gh_release
@@ -101,16 +91,14 @@ jobs:
           files: dotrain_npm_package_${{ env.NEW_VERSION }}.tgz
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-
   release_bin:
     name: Release dotrain cli ${{ matrix.platform }}_${{ matrix.arch }} bin
     needs: release
     runs-on: ${{ matrix.runner }}
     strategy:
       fail-fast: false
       matrix:
-        include:          
+        include:
           - runner: ubuntu-22.04
             target: x86_64-unknown-linux-gnu
             platform: linux
@@ -127,30 +115,32 @@ jobs:
             target: aarch64-apple-darwin
             platform: darwin
             arch: arm64
-
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
           submodules: recursive
           ssh-key: ${{ secrets.PUBLISHER_SSH_KEY }}
-
-      - uses: DeterminateSystems/nix-installer-action@v4
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
-
+      - uses: nixbuild/nix-quick-install-action@v30
+        with:
+          nix_conf: |
+            keep-env-derivations = true
+            keep-outputs = true
+      - name: Restore and save Nix store
+        uses: nix-community/cache-nix-action@v6
+        with:
+          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
+          restore-prefixes-first-match: nix-${{ runner.os }}-
+          gc-max-store-size-linux: 1G
       - name: Git Config
         run: |
           git config --global user.email "${{ secrets.CI_GIT_EMAIL }}"
           git config --global user.name "${{ secrets.CI_GIT_USER }}"
-
       - name: Pull Release Commit
         run: git pull origin
-
       - name: Build Bin
         run: nix develop -c cargo build -r --features cli --bin dotrain --target "${{ matrix.target }}"
-
       - run: cp ./target/${{ matrix.target }}/release/dotrain ./dotrain_cli_${{ needs.release.outputs.version }}_${{ matrix.platform }}_${{ matrix.arch }}
-
       - name: Add Bin To Release
         uses: softprops/action-gh-release@v2
         with:

.github/workflows/pr-assessment.yaml

@@ -3,7 +3,6 @@ on:
   pull_request:
     types:
       - closed
-
 jobs:
   assess-pr-size-on-merge:
     uses: rainlanguage/github-chore/.github/workflows/pr-assessment.yml@main

.github/workflows/rainix.yaml

@@ -1,38 +1,25 @@
-name: Rainix CI
+name: rainix-rs
 on: [push]
-
 jobs:
-  rainix:
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest]
-        task: [rainix-rs-test, rainix-rs-artifacts]
-        include:
-          # We don't need to do rust static analysis on multiple platforms
-          - os: ubuntu-latest
-            task: rainix-rs-static
-      fail-fast: false
-    runs-on: ${{ matrix.os }}
-
+  static:
+    uses: rainlanguage/rainix/.github/workflows/rainix-rs-static.yaml@main
+  test:
+    uses: rainlanguage/rainix/.github/workflows/rainix-rs-test.yaml@main
+  js-bindings:
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: nixbuild/nix-quick-install-action@v30
         with:
-          submodules: recursive
-          fetch-depth: 0
-
-      - uses: DeterminateSystems/nix-installer-action@v4
-      - uses: DeterminateSystems/magic-nix-cache-action@v2
-
-      - run: nix develop -c rainix-rs-prelude
-
-      - name: Run ${{ matrix.task }}
-        run: nix develop -c ${{ matrix.task }}
-
-      - name: Build JS Bindings
-        run:  nix develop -c build-js-bindings
-      
-      - name: Run JS Tests
-        run:  nix develop -c test-js-bindings
-
-      - name: Test JS Doc Generation
-        run:  nix develop -c js-bindings-docs
+          nix_conf: |
+            keep-env-derivations = true
+            keep-outputs = true
+      - name: Restore and save Nix store
+        uses: nix-community/cache-nix-action@v6
+        with:
+          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
+          restore-prefixes-first-match: nix-${{ runner.os }}-
+          gc-max-store-size-linux: 1G
+      - run: nix develop -c build-js-bindings
+      - run: nix develop -c test-js-bindings
+      - run: nix develop -c js-bindings-docs

.rustfmt.toml

@@ -3,4 +3,4 @@ reorder_imports = false
 reorder_modules = false
 # group_imports = "StdExternalCrate"
 # imports_layout = "HorizontalVertical"
-# unstable_features = true
+# unstable_features = true